Games like Unsorted Horror
Games like Unsorted Horror include SOMA, Outlast, Poppy Playtime, MOLE, and SIGNALIS. We matched them by the tags players give Unsorted Horror on Steam (Psychological Horror, Atmospheric, Simulation, First-Person, and Action): closest matches first, and among equally close ones the better-known games.

SOMA
Shared: Psychological Horror · Atmospheric · Dark

Outlast
Shared: Atmospheric · First-Person · Psychological Horror

Poppy Playtime
Shared: First-Person · Psychological Horror · Puzzle

MOLE
Shared: Simulation · Psychological Horror · Atmospheric

SIGNALIS
Shared: Psychological Horror · Atmospheric · Sci-fi

Outlast 2
Shared: Psychological Horror · First-Person · Atmospheric

We Happy Few
Shared: Action · Psychological Horror · First-Person

ROUTINE
Shared: Psychological Horror · Atmospheric · Sci-fi

Resident Evil 7 Biohazard
Shared: First-Person · Atmospheric · Psychological Horror

MADiSON
Shared: Psychological Horror · First-Person · Atmospheric

MiSide
Shared: Psychological Horror · First-Person · Atmospheric

Amnesia: The Dark Descent
Shared: Psychological Horror · Atmospheric · First-Person

s.p.l.i.t
Shared: Psychological Horror · Simulation · Atmospheric

Lethal Company
Shared: First-Person · Psychological Horror · Atmospheric

Garten of Banban
Shared: Psychological Horror · First-Person · Puzzle

Buckshot Roulette
Shared: First-Person · Dark · Psychological Horror

Inside the Backrooms
Shared: Psychological Horror · Puzzle · Atmospheric

Half-Life 2
Shared: Action · First-Person · Sci-fi

The Talos Principle
Shared: First-Person · Puzzle · Atmospheric

The Long Dark
Shared: Atmospheric · Survival · First-Person

Scorn
Shared: Atmospheric · First-Person · Psychological Horror

Darkwood
Shared: Psychological Horror · Action · Atmospheric

The Outlast Trials
Shared: Psychological Horror · First-Person · Action

Subnautica 2
Shared: Survival · First-Person · Atmospheric